On Wed, May 17, 2017 at 10:11:50AM -0400, Soheil Hassas Yeganeh wrote: > On Tue, May 16, 2017 at 8:44 AM, Miroslav Lichvar <mlich...@redhat.com> wrote: > > +/* SCM_TIMESTAMPING_PKTINFO control message */ > > +struct scm_ts_pktinfo { > > + __u32 if_index; > > + __u32 pkt_length; > > +}; > > + > > Given that this structure can change in the future, it might be worth > considering using TLVs (e.g., netlink attributes), similar to what > tcp_get_timestamping_opt_stats() does. This would simplify > adding/removing fields to/from the control message.
[ BTW, please trim your replies. ] Personally, I dislike TLVs. Alternatively, you could add some reserved fields for future use. Thanks, Richard